586 research outputs found
Automated analysis of atrial late gadolinium enhancement imaging that correlates with endocardial voltage and clinical outcomes: A 2-center study
This work was supported by the British Heart Foundation PG/10/37/28347, RG/10/11/28457, NIHR Biomedical Research Centre funding, and the ElectroCardioMaths Programme of the Imperial BHF Centre of Research Excellence
Cognitive Ability and Cardiovascular Control in Intellectually and Developmentally Disabled People
Earlier, we examined positive effects of hyperoxic air on the cognitive ability of intellectually
and developmentally disabled people (IDDP). In this study, correlation between cognitive
performance in the visual matching task and heart rate (HR) was investigated under normal
air conditions. Eighteen men (mean age 28.7 ± 5.0 year) and 22 women (mean age 35.5 ± 6.9
year) with an assessed disability level of 2.3 ± 0.6 participated. The experiment consisted of
three phases, a total of 7 min, including the rest (3 min), control (2 min), and visual matching
task 2 min phases. The HR in visual matching task phase increased, compared to those in the
rest and control phases. The cognitive ability in the visual matching task correlated with the
HR values; the response time showed a negative correlation with HR, while the accuracy rate
showed a positive correlation. Thus, adaptive changes in cardiovascular regulation probably
related to cognitive efforts and emotional excitation should be considered a noticeable factor
influencing brain supply with oxygen in IDDP (similarly to healthy people). The result of this
study agrees with the earlier obtained indications that hyperoxic air can positively affect the
cognitive performance in IDDP.Đ Đ°ĐœŃŃĐ” ĐŒĐž ĐČĐžĐČŃалО ĐżĐŸĐ·ĐžŃĐžĐČĐœŃ ĐČплОĐČĐž ĐżĐŸĐČŃŃŃŃ, збагаŃĐ”ĐœĐŸĐłĐŸ
ĐșĐžŃĐœĐ”ĐŒ, ĐœĐ° ĐșĐŸĐłĐœŃŃĐžĐČĐœŃ Đ·ĐŽĐ°ŃĐœĐŸŃŃŃ Đ»ŃĐŽĐ”Đč Đ· ĐœĐ”ĐŽĐŸŃŃĐ°ŃĐœŃĐŒ ŃĐœŃДлДĐșŃŃĐ°Đ»ŃĐœĐžĐŒ ŃĐŸĐ·ĐČĐžŃĐșĐŸĐŒ (ĐĐĐ ). ĐŁ ĐœĐ°ŃŃĐč ŃĐŸĐ±ĐŸŃŃ ĐŒĐž ĐŽĐŸŃĐ»ŃЎжŃĐČалО ĐșĐŸŃДлŃŃŃŃ ĐŒŃж ĐżĐŸĐșĐ°Đ·ĐœĐžĐșĐ°ĐŒĐž ĐșĐŸĐłĐœŃŃĐžĐČĐœĐŸŃ Đ°ĐșŃĐžĐČĐœĐŸŃŃŃ ĐČ
ŃĐ”ŃŃŃ ĐČŃĐ·ŃĐ°Đ»ŃĐœĐŸŃ ĐČŃĐŽĐżĐŸĐČŃĐŽĐœĐŸŃŃŃ ŃĐ° ŃĐ°ŃŃĐŸŃĐŸŃ ŃĐ”ŃŃĐ”ĐČĐžŃ
ŃĐșĐŸŃĐŸŃĐ”ĐœŃ (ЧХХ) Ń ŃĐ°ĐșĐžŃ
ŃŃбâŃĐșŃŃĐČ ĐČ ŃĐŒĐŸĐČĐ°Ń
ĐŽĐžŃ
Đ°ĐœĐœŃ ĐœĐŸŃĐŒĐ°Đ»ŃĐœĐžĐŒ
ĐżĐŸĐČŃŃŃŃĐŒ. ĐŁ ŃĐ”ŃŃĐ°Ń
бŃалО ŃŃĐ°ŃŃŃ 18 ŃĐŸĐ»ĐŸĐČŃĐșŃĐČ (ŃĐ”ŃĐ”ĐŽĐœŃĐč ĐČŃĐș
28.7 ± 5.0 ŃĐŸĐșŃ) ŃĐ° 22 жŃĐœĐșĐž (35.5 ± 6.9 ŃĐŸĐșŃ) Đ· ĐŸŃŃĐœĐșĐŸŃ ŃŃĐČĐœŃ
ŃĐœŃДлДĐșŃŃĐ°Đ»ŃĐœĐŸĐłĐŸ ŃĐŸĐ·ĐČĐžŃĐșŃ 2.3 ± 0.6. ĐĐșŃпДŃĐžĐŒĐ”ĐœŃ (загалŃĐœĐ°
ŃŃĐžĐČĐ°Đ»ŃŃŃŃ 7 Ń
ĐČ) ŃĐșлаЎаĐČŃŃ Đ· ŃŃŃĐŸŃ
ŃĐ°Đ·: ŃŃĐ°Đœ ŃĐŸĐ·ŃĐ»Đ°Đ±Đ»Đ”ĐœĐœŃ
(3 Ń
ĐČ), ĐșĐŸĐœŃŃĐŸĐ»Ń (2 Ń
ĐČ) ŃĐ° ŃĐ”ŃŃ ĐČŃĐ·ŃĐ°Đ»ŃĐœĐŸŃ ĐČŃĐŽĐżĐŸĐČŃĐŽĐœĐŸŃŃŃ
(2 Ń
ĐČ). ĐДлОŃĐžĐœĐž ЧХХ Ń ĐŒĐ”Đ¶Đ°Ń
ŃŃĐŸĐłĐŸ ŃĐ”ŃŃŃ ĐżĐŸŃŃĐČĐœŃĐœĐŸ Đ· ĐČДлОŃĐžĐœĐ°ĐŒĐž ĐČ ŃĐŒĐŸĐČĐ°Ń
ŃĐŸĐ·ŃĐ»Đ°Đ±Đ»Đ”ĐœĐœŃ Đč ĐșĐŸĐœŃŃĐŸĐ»Ń Đ·ŃĐŸŃŃалО. ĐĐŸĐșĐ°Đ·ĐœĐžĐșĐž ĐșĐŸĐłĐœŃŃĐžĐČĐœĐžŃ
Đ·ĐŽŃĐ±ĐœĐŸŃŃĐ”Đč ĐșĐŸŃДлŃĐČалО Đ· ĐČДлОŃĐžĐœĐ°ĐŒĐž
ЧХХ; ĐșĐŸŃДлŃŃŃŃ ŃĐ°ŃŃ ĐČŃĐŽĐżĐŸĐČŃĐŽŃ Đ±Ńла ĐœĐ”ĐłĐ°ŃĐžĐČĐœĐŸŃ, Đ° ŃĐŸŃĐœĐŸŃŃŃ ĐČŃĐŽĐżĐŸĐČŃĐŽŃ â ĐżĐŸĐ·ĐžŃĐžĐČĐœĐŸŃ. ĐŃжД, Đ°ĐŽĐ°ĐżŃĐžĐČĐœŃ Đ·ĐŒŃĐœĐž ŃДгŃĐ»ŃŃŃŃ
ŃĐ”ŃŃĐ”ĐČĐŸ-ŃŃĐŽĐžĐœĐœĐŸŃ ŃĐžŃŃĐ”ĐŒĐž, ĐŒĐ°Đ±ŃŃŃ, ĐżĐŸĐČâŃĐ·Đ°ĐœŃ Đ· ĐșĐŸĐłĐœŃŃĐžĐČĐœĐžĐŒĐž
Đ·ŃŃОллŃĐŒĐž ŃĐ° Đ”ĐŒĐŸŃŃĐčĐœĐžĐŒ збŃĐŽĐ¶Đ”ĐœĐœŃĐŒ, Ń ŃŃŃĐŸŃĐœĐžĐŒ ŃĐ°ĐșŃĐŸŃĐŸĐŒ,
ŃĐșĐžĐč ĐČплОĐČĐ°Ń ĐœĐ° ĐżĐŸŃŃĐ°ŃĐ°ĐœĐœŃ ĐŒĐŸĐ·ĐșŃ ĐșĐžŃĐœĐ”ĐŒ Ń Đ»ŃĐŽĐ”Đč ŃĐ· ĐĐĐ
(ŃĐș Ń Ń Đ·ĐŽĐŸŃĐŸĐČĐžŃ
Đ»ŃĐŽĐ”Đč). РДзŃĐ»ŃŃĐ°ŃĐž ĐœĐ°ŃĐŸŃ ŃĐŸĐ±ĐŸŃĐž ŃĐ·ĐłĐŸĐŽĐ¶ŃŃŃŃŃŃ Đ· ĐŸŃŃĐžĐŒĐ°ĐœĐžĐŒĐž ŃĐ°ĐœŃŃĐ” ŃĐČŃĐŽĐŸŃŃĐČĐ°ĐŒĐž ĐżŃĐŸ ŃĐ”, ŃĐŸ ĐŽĐžŃ
Đ°ĐœĐœŃ
ĐżĐŸĐČŃŃŃŃĐŒ, збагаŃĐ”ĐœĐžĐŒ ĐșĐžŃĐœĐ”ĐŒ, ĐżĐŸĐ·ĐžŃĐžĐČĐœĐŸ ĐČплОĐČĐ°Ń ĐœĐ° ĐșĐŸĐłĐœŃŃĐžĐČĐœŃ ĐŒĐŸĐ¶Đ»ĐžĐČĐŸŃŃŃ Đ»ŃĐŽĐ”Đč ŃĐ· ĐĐĐ
Search for Neutral Q-balls in Super-Kamiokande II
A search for Q-balls induced groups of successive contained events has been
carried out in Super-Kamiokande II with 541.7 days of live time.
Neutral Q-balls would emit pions when colliding with nuclei, generating a
signal of successive contained pion events along a track. No candidate for
successive contained event groups has been found in Super-Kamiokande II, so
upper limits on the possible flux of such Q-balls have been obtained.Comment: 5 pages, 5 figures, Submitted to Phys. Lett.
Heavy Quarks and Heavy Quarkonia as Tests of Thermalization
We present here a brief summary of new results on heavy quarks and heavy
quarkonia from the PHENIX experiment as presented at the "Quark Gluon Plasma
Thermalization" Workshop in Vienna, Austria in August 2005, directly following
the International Quark Matter Conference in Hungary.Comment: 8 pages, 5 figures, Quark Gluon Plasma Thermalization Workshop
(Vienna August 2005) Proceeding
Single Electrons from Heavy Flavor Decays in p+p Collisions at sqrt(s) = 200 GeV
The invariant differential cross section for inclusive electron production in
p+p collisions at sqrt(s) = 200 GeV has been measured by the PHENIX experiment
at the Relativistic Heavy Ion Collider over the transverse momentum range $0.4
<= p_T <= 5.0 GeV/c at midrapidity (eta <= 0.35). The contribution to the
inclusive electron spectrum from semileptonic decays of hadrons carrying heavy
flavor, i.e. charm quarks or, at high p_T, bottom quarks, is determined via
three independent methods. The resulting electron spectrum from heavy flavor
decays is compared to recent leading and next-to-leading order perturbative QCD
calculations. The total cross section of charm quark-antiquark pair production
is determined as sigma_(c c^bar) = 0.92 +/- 0.15 (stat.) +- 0.54 (sys.) mb.Comment: 329 authors, 6 pages text, 3 figures. Submitted to Phys. Rev. Lett.
Plain text data tables for the points plotted in figures for this and
previous PHENIX publications are (or will be) publicly available at
http://www.phenix.bnl.gov/papers.htm
Nuclear Modification of Electron Spectra and Implications for Heavy Quark Energy Loss in Au+Au Collisions at sqrt(s_NN)=200 GeV
The PHENIX experiment has measured mid-rapidity transverse momentum spectra
(0.4 < p_T < 5.0 GeV/c) of electrons as a function of centrality in Au+Au
collisions at sqrt(s_NN)=200 GeV. Contributions from photon conversions and
from light hadron decays, mainly Dalitz decays of pi^0 and eta mesons, were
removed. The resulting non-photonic electron spectra are primarily due to the
semi-leptonic decays of hadrons carrying heavy quarks. Nuclear modification
factors were determined by comparison to non-photonic electrons in p+p
collisions. A significant suppression of electrons at high p_T is observed in
central Au+Au collisions, indicating substantial energy loss of heavy quarks.Comment: 330 authors, 6 pages text, 3 figures. Submitted to Phys. Rev. Lett.
Plain text data tables for the points plotted in figures for this and
previous PHENIX publications are (or will be) publicly available at
http://www.phenix.bnl.gov/papers.htm
Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration
Extensive experimental data from high-energy nucleus-nucleus collisions were
recorded using the PHENIX detector at the Relativistic Heavy Ion Collider
(RHIC). The comprehensive set of measurements from the first three years of
RHIC operation includes charged particle multiplicities, transverse energy,
yield ratios and spectra of identified hadrons in a wide range of transverse
momenta (p_T), elliptic flow, two-particle correlations, non-statistical
fluctuations, and suppression of particle production at high p_T. The results
are examined with an emphasis on implications for the formation of a new state
of dense matter. We find that the state of matter created at RHIC cannot be
described in terms of ordinary color neutral hadrons.Comment: 510 authors, 127 pages text, 56 figures, 1 tables, LaTeX. Submitted
to Nuclear Physics A as a regular article; v3 has minor changes in response
to referee comments. Plain text data tables for the points plotted in figures
for this and previous PHENIX publications are (or will be) publicly available
at http://www.phenix.bnl.gov/papers.htm
Interactions between donor age and 12-month estimated glomerular filtration rate on allograft and patient outcomes after kidney transplantation
Reduced estimated glomerular filtration rate (eGFR) at 12-months after kidney transplantation is associated with increased risk of allograft loss, but it is uncertain whether donor age and types modify this relationship. Using Australia and New Zealand registry data, multivariable Cox proportional modelling was used to examine the interactive effects between donor age, types and 12-month eGFR on overall allograft loss. We included 11,095 recipients (4,423 received live-donors). Recipients with lowest 12-month eGFR (60 ml/min/1.73 mÂČ) was 0.67 [0.62â0.74]. The association of 12-month eGFR and allograft loss was modified by donor age (but not donor types) where a higher risk of allograft loss in recipients with lower compared with higher 12-month eGFR being most pronounced in the younger donor age groups (p 60 ml/min/1.73 mÂČ, and the magnitude of the increased risk is most marked among recipients with younger donors. Careful deliberation of other factors including donor age when considering eGFR as a surrogate for clinical endpoints is warranted.Wai H. Lim, Esther Ooi, Helen L. Pilmore, David W. Johnson, Stephen P. McDonald, Philip Clayton, Carmel Hawley, William R. Mulley, Ross Francis, Michael G. Collins, Bryon Jaques, Nicholas G. Larkins, Christopher E. Davies, Kate Wyburn, Steve J. Chadban and Germaine Won
Measurement of Transverse Single-Spin Asymmetries for Mid-rapidity Production of Neutral Pions and Charged Hadrons in Polarized p+p Collisions at sqrt(s) = 200 GeV
The transverse single-spin asymmetries of neutral pions and non-identified
charged hadrons have been measured at mid-rapidity in polarized proton-proton
collisions at sqrt(s) = 200 GeV. The data cover a transverse momentum (p_T)
range 0.5-5.0 GeV/c for charged hadrons and 1.0-5.0 GeV/c for neutral pions, at
a Feynman-x (x_F) value of approximately zero. The asymmetries seen in this
previously unexplored kinematic region are consistent with zero within
statistical errors of a few percent. In addition, the inclusive charged hadron
cross section at mid-rapidity from 0.5 < p_T < 7.0 GeV/c is presented and
compared to NLO pQCD calculations. Successful description of the unpolarized
cross section above ~2 GeV/c using NLO pQCD suggests that pQCD is applicable in
the interpretation of the asymmetry results in the relevant kinematic range.Comment: 331 authors, 6 pages text, 2 figures, 3 tables. Submitted to Phys.
Rev. Lett. Plain text data tables for the points plotted in figures for this
and previous PHENIX publications are (or will be) publicly available at
http://www.phenix.bnl.gov/papers.htm
Measurement of the polarisation of W bosons produced with large transverse momentum in pp collisions at sqrt(s) = 7 TeV with the ATLAS experiment
This paper describes an analysis of the angular distribution of W->enu and
W->munu decays, using data from pp collisions at sqrt(s) = 7 TeV recorded with
the ATLAS detector at the LHC in 2010, corresponding to an integrated
luminosity of about 35 pb^-1. Using the decay lepton transverse momentum and
the missing transverse energy, the W decay angular distribution projected onto
the transverse plane is obtained and analysed in terms of helicity fractions
f0, fL and fR over two ranges of W transverse momentum (ptw): 35 < ptw < 50 GeV
and ptw > 50 GeV. Good agreement is found with theoretical predictions. For ptw
> 50 GeV, the values of f0 and fL-fR, averaged over charge and lepton flavour,
are measured to be : f0 = 0.127 +/- 0.030 +/- 0.108 and fL-fR = 0.252 +/- 0.017
+/- 0.030, where the first uncertainties are statistical, and the second
include all systematic effects.Comment: 19 pages plus author list (34 pages total), 9 figures, 11 tables,
revised author list, matches European Journal of Physics C versio
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